NEET Exam > NEET Videos > Chemistry Class 11 > Salt of Weak Acid & Strong Base
Salt of Weak Acid & Strong Base Video Lecture | Chemistry Class 11 - NEET
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FAQs on Salt of Weak Acid & Strong Base Video Lecture - Chemistry Class 11 - NEET
| 1. What is a salt of a weak acid and strong base? |  |
Ans. A salt of a weak acid and strong base is a compound formed when a weak acid reacts with a strong base. It is composed of a cation from the base and an anion from the acid. The resulting salt usually has a neutral pH.
| 2. How is the pH of a salt of a weak acid and strong base determined? | |
Ans. The pH of a salt of a weak acid and strong base can be determined by considering the strength of the acid and base involved. If the weak acid is stronger than the strong base, the resulting salt will have an acidic pH. Conversely, if the strong base is stronger than the weak acid, the salt will have a basic pH. If the acid and base have similar strengths, the salt will be neutral.
| 3. Can a salt of a weak acid and strong base act as a buffer solution? | |
Ans. Yes, a salt of a weak acid and strong base can act as a buffer solution. When a small amount of acid or base is added to the solution, the salt can react to either neutralize the added acid or base, maintaining the pH of the solution relatively stable. This buffering capacity arises from the ability of the salt to dissociate into its cation and anion, which can react with the added acid or base.
| 4. Are there any examples of salts of weak acids and strong bases in everyday life? | |
Ans. Yes, there are several examples of salts of weak acids and strong bases in everyday life. One common example is sodium bicarbonate (baking soda), which is formed from the reaction between carbonic acid and sodium hydroxide. Another example is sodium acetate, which is formed from the reaction between acetic acid and sodium hydroxide. Both of these salts have various uses in cooking, cleaning, and medicine.
| 5. Can the pH of a salt of a weak acid and strong base change over time? | |
Ans. The pH of a salt of a weak acid and strong base can change over time due to hydrolysis. Hydrolysis occurs when the salt reacts with water and forms the corresponding acid or base. If the acid formed is stronger than the weak acid initially used, the pH of the solution will become more acidic. Conversely, if the base formed is stronger than the strong base initially used, the pH will become more basic. The extent of pH change depends on the strength of the acid and base formed and the concentration of the salt in the solution.
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Nov 15, 2024 Last updated |
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